The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2018
Filed:
May. 17, 2017
Optiworks, Inc., Fremont, CA (US);
Xuefeng Yue, San Jose, CA (US);
OW Holding Inc., Grand Cayman, KY;
Abstract
A multiport free-space wavelength division multiplexing ('WDM') device is capable of handling multiple optical signals carried in multiple wavelengths ('λ') using a prism. The WDM device includes an input collimator, prism, and optical filter. The input collimator receives an optical beam containing multiple wavelengths λtraveling through free-space. The prism uses at least two (2) surfaces to generate a first optical beam which travels in opposite direction of the optical beam. The optical filter is situated at a predefined angle with respect to the interface surface of the prism for facilitating frequency separation as well as extracts a first wavelength (“λ”) from λto form a first light signal with λand form a second optical beam with the remaining wavelengths of λ. A collimator is used to guide the first light signal to a port.